.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C84D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,223DB800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2646D727688
 
call      qword ptr [7FFF4C804E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8696D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0DC978]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBDF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBDF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,90FC5405A011
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C804828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,90FC5405A011
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C804390]
 
mov       rcx,90FC5405A011
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C8EE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C8EE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0D65E0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,223DB800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D06C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D066508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D0AD710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D06C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C73C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,223DB801DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9A7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,90FC5405A011
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C8044B0]
 
mov       rcx,90FC5405A011
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBDF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2646D710008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C84DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBDF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF4C9857E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF4C985800]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C81D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1FB10C00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,23BA2D47688
 
call      qword ptr [7FFF4C7D4E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8396D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C81D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5A7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0AC978]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0FF27D7F4C874
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C7D4828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0FF27D7F4C874
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7D4390]
 
mov       rcx,0FF27D7F4C874
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C8BE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C8BE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0A65E0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1FB10C00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D03C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D036508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D07D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D03C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C70C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1FB10C01DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C977320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0FF27D7F4C874
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7D44B0]
 
mov       rcx,0FF27D7F4C874
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,23BA2D30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C81DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF4C9557E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF4C955800]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C82D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1F986400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,23A184B7688
 
call      qword ptr [7FFF4C7E4E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5B7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0BC978]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,8AB67B7D7441
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C7E4828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,8AB67B7D7441
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7E4390]
 
mov       rcx,8AB67B7D7441
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C8CE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C8CE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0B65E0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1F986400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D04C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D046508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D08D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D04C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C71C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1F986401DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C987320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,8AB67B7D7441
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7E44B0]
 
mov       rcx,8AB67B7D7441
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C82DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C9657E8]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C965800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,23A184A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,2A7B6800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2E848717688
 
call      qword ptr [7FFF4C834810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5B7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0AC948]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,172B3A7C24E2
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C834228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,172B3A7C24E2
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C80FD20]
 
mov       rcx,172B3A7C24E2
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7DF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7DF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0A64F0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,2A7B6800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D03C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D036508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D07D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D03C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C71C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,2A7B6805CE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9775C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,172B3A7C24E2
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C80FE40]
 
mov       rcx,172B3A7C24E2
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2E848700008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1E5A5800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,226376376A8
 
call      qword ptr [7FFF4C824810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5A7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D09DD28]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,35FF978F63DD
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C824228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,35FF978F63DD
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7FFD20]
 
mov       rcx,35FF978F63DD
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7CF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7CF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0975A0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1E5A5800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D02DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D0278B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D06E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D02DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C70C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1E5A5805CE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9675C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,35FF978F63DD
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7FFE40]
 
mov       rcx,35FF978F63DD
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,22637620008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C90C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1D4E3800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,215718F76A8
 
call      qword ptr [7FFF4C844810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5C7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0BDD28]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,7FEF5313B69F
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C844228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,7FEF5313B69F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C81FD20]
 
mov       rcx,7FEF5313B69F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7EF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7EF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0B75A0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1D4E3800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D04DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D0478B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D08E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D04DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C72C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1D4E3805CE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9875C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,7FEF5313B69F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C81FE40]
 
mov       rcx,7FEF5313B69F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,215718E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,22448800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,264DA5D76A8
 
call      qword ptr [7FFF4C834810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5B7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0AD830]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,9478D7596EB5
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C834228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,9478D7596EB5
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C80FD20]
 
mov       rcx,9478D7596EB5
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7DF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7DF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0A75A0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,22448800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D03DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D0378B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D07E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D03DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C71C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,22448805CE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9775C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,9478D7596EB5
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C80FE40]
 
mov       rcx,9478D7596EB5
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,264DA5C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,2B054800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2F0E26C76A8
 
call      qword ptr [7FFF4C824810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5A7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D09D830]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0ACB61149F8A3
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C824228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0ACB61149F8A3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7FFD20]
 
mov       rcx,0ACB61149F8A3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7CF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7CF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0975A0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,2B054800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D02DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D0278B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D06E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D02DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C70C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,2B050803CF0
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9675C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0ACB61149F8A3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7FFE40]
 
mov       rcx,0ACB61149F8A3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2F0E26B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C82D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,22720800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,267AE6F7688
 
call      qword ptr [7FFF4C7E4E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
call      qword ptr [7FFF4CB84CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF4CAED7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFF4C98B8E8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF4CAED7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB84AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C7E6718]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5B7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0BCED0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,10DCD1468EE3
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C7E4828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,10DCD1468EE3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7E4390]
 
mov       rcx,10DCD1468EE3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C8CE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C8CE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0B6B38]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,22720800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D04C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D046508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D08D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D04C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C71C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,22720801DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C987320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,10DCD1468EE3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7E44B0]
 
mov       rcx,10DCD1468EE3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C82DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C9657E8]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C965800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,267AE6E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFF4C965D58]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,267AE6E0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C83D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1FFCB800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2405D687688
 
call      qword ptr [7FFF4C7F4E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8596D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFF4CB94CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF4CAFD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFF4C99B8E8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF4CAFD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB94AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C7F6718]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5C7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0CCED0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,89467E7817F9
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C7F4828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,89467E7817F9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7F4390]
 
mov       rcx,89467E7817F9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C8DE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C8DE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0C6B38]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1FFCB800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D05C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D056508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D09D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D05C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C72C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1FFCB801DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C997320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,89467E7817F9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7F44B0]
 
mov       rcx,89467E7817F9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2405D670008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C83DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF4C9757E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF4C975800]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFF4C975D58]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,2405D670008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,241E5C00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,28273AD7688
 
call      qword ptr [7FFF4C834810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF4CB74CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF4CADD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFF4C97BB90
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF4CADD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF4CB74AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF4C886670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5B7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0ACED0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,7DCD88F8D5D9
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C834228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,7DCD88F8D5D9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C80FD20]
 
mov       rcx,7DCD88F8D5D9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7DF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7DF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0A6B38]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,241E5C00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D03C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D036508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D07D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D03C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C71C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,241E5C05CE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9775C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,7DCD88F8D5D9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C80FE40]
 
mov       rcx,7DCD88F8D5D9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,28273AC0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF4C85EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,28273AC0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C90C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,2106AC00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,250FCA47688
 
call      qword ptr [7FFF4C844810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFF4CB84CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF4CAED7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFF4C98BB90
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF4CAED7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB84AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C896670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5C7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0BCEA0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,6AA279E950C1
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C844228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,6AA279E950C1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C81FD20]
 
mov       rcx,6AA279E950C1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7EF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7EF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0B6A48]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,2106AC00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D04C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D046508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D08D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D04C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C72C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,2106AC05CE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9875C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,6AA279E950C1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C81FE40]
 
mov       rcx,6AA279E950C1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,250FCA30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFF4C86EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,250FCA30008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C91C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1C9D5800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,20A637976A8
 
call      qword ptr [7FFF4C854810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF4CB94CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF4CAFD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFF4C99BB90
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C686B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF4CAFD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C686B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF4CB94AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF4C8A6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0CE2C8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0C4F912505591
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C854228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0C4F912505591
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C82FD20]
 
mov       rcx,0C4F912505591
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7FF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7FF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0C7AF8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1C9D5800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D05DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D0578B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D09E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D05DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C73C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1C9D1803CF0
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0C4F912505591
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C82FE40]
 
mov       rcx,0C4F912505591
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,20A63780008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF4C87EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,20A63780008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1AD70000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1EDFDD476A8
 
call      qword ptr [7FFF4C824810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFF4CB64CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF4CACD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFF4C96BB90
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C656B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF4CACD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C656B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB64AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C876670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5A7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D09E2C8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0A293CA7BB38E
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C824228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0A293CA7BB38E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7FFD20]
 
mov       rcx,0A293CA7BB38E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7CF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7CF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D097AF8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1AD70000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D02DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D0278B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D06E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D02DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C70C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1AD70005CE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9675C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0A293CA7BB38E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C7FFE40]
 
mov       rcx,0A293CA7BB38E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1EDFDD30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFF4C84EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,1EDFDD30008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,20C04000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,24C95CD76A8
 
call      qword ptr [7FFF4C834810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF4CB74CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF4CADD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFF4C97BB90
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF4CADD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF4CB74AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF4C886670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5B7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0AE2C8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0A44B9A4B84D2
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C834228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0A44B9A4B84D2
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C80FD20]
 
mov       rcx,0A44B9A4B84D2
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7DF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7DF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0A7AF8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,20C04000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D03DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D0378B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D07E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D03DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C71C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,20C04005CE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C9775C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0A44B9A4B84D2
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C80FE40]
 
mov       rcx,0A44B9A4B84D2
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,24C95CC0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF4C85EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,24C95CC0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C977600]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1EB98400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,22C260B76A8
 
call      qword ptr [7FFF4C854810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C9B3E68]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF4CB94CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF4CAFD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFF4C915A78
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C686B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF4CAFD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C686B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF4CB94AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF4C8A6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C97C2E8]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C5D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF4D0CDD88]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0C19E5700A4EB
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF4C854228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0C19E5700A4EB
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C82FD20]
 
mov       rcx,0C19E5700A4EB
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C7FF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF4C7FF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF4D0C7AF8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1EB98400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF4D05DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF4D0578B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF4D09E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF4D05DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF4C73C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1EB94403C80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF4C8B9110]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0C19E5700A4EB
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF4C82FE40]
 
mov       rcx,0C19E5700A4EB
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,22C260A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF4C87EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,22C260A0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L02
 
test      r8b,18
 
je        short M05_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M05_L00
  
ret
 
M05_L01
  
test      r8b,4
 
je        short M05_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M05_L00
 
M05_L02
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L06
 
M05_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L05
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M05_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M05_L00
 
M05_L06
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L04
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        near ptr M05_L03
 
jmp       near ptr M05_L04
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF4C97C3A8]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
cmp       dword ptr [rdi+8],0
 
jle       near ptr M00_L06
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1CCD1800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,20D5F657688
 
call      qword ptr [7FFF4C666C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L05
 
lea       rdx,[rax+0C]
 
mov       r14d,[rax+8]
 
test      r14d,r14d
 
je        short M00_L05
 
mov       r8,[rsi+8]
 
mov       r15d,[rsi+18]
 
lea       ecx,[r15+r14]
 
cmp       ecx,[r8+8]
 
ja        short M00_L04
 
movsxd    rcx,r15d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jle       short M00_L02
 
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r14d,r15d
 
mov       [rsi+18],r14d
 
jmp       short M00_L05
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
call      qword ptr [7FFF4D0DCE40]
 
test      eax,eax
 
je        near ptr M00_L13
 
jmp       near ptr M00_L12
 
M00_L04
  
mov       rcx,rsi
 
mov       r8d,r14d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L05
  
inc       ebp
 
cmp       [rdi+8],ebp
 
jg        near ptr M00_L00
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L07
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L10
 
jmp       short M00_L08
 
M00_L07
  
call      qword ptr [7FFF4D0DCE40]
 
test      eax,eax
 
jne       short M00_L10
 
M00_L08
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L09
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L10
 
jmp       near ptr M00_L24
 
M00_L09
  
call      qword ptr [7FFF4D0DCE40]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L10
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L11
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       near ptr M00_L03
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L11
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF4D0DCE40]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF4D0DCE40]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       r15,rsi
 
M00_L21
  
mov       [rsp+38],r15
 
mov       rdi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rdi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rdi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
mov       r8d,ebp
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       r15,20D5F640008
 
jmp       short M00_L21
 
M00_L24
  
mov       r15,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0B21C1A506761
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0B21C1A506761
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,20D5F640008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,17F00400428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1BF92257688
 
call      qword ptr [7FFF4C676C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF4D0ECD50]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF4D0ECD50]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L12
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L14
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L12
 
M00_L11
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L12
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        near ptr M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L13
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L14
  
call      qword ptr [7FFF4D0ECD50]
 
test      eax,eax
 
je        short M00_L12
 
jmp       short M00_L11
 
M00_L15
  
call      qword ptr [7FFF4D0ECD50]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L13
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF4D0ECD50]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       r15,rsi
 
M00_L21
  
mov       [rsp+30],r15
 
mov       rdi,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rdi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rdi+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
mov       r8d,ebp
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       r15,1BF92240008
 
jmp       short M00_L21
 
M00_L24
  
mov       r15,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,1DF07425E378
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,1DF07425E378
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C907318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1BF92240008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,21B70800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,25BFE547688
 
call      qword ptr [7FFF4C676C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       ecx,ecx
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF4CF4E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF4CF4E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF4CF4E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF4CF4E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF4CF4E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,25BFE530008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0F25679BF3A25
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0F25679BF3A25
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C907318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,25BFE530008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFFAC017370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFFAC030750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,27338400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2B3C6227688
 
call      qword ptr [7FFF4C666C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,2B3C6210008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,76D820F87792
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,76D820F87792
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2B3C6210008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFFAC017370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFFAC030750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,14998800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,18A267476A8
 
call      qword ptr [7FFF4C656C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF4CF2E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF4CF2E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF4CF2E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF4CF2E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF4CF2E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,18A26730008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0FE63C6E7BF76
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0FE63C6E7BF76
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,18A26730008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFFAC017370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFFAC030750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,230F7000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,27188F976A8
 
call      qword ptr [7FFF4C686C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF4CF5E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF4CF5E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF4CF5E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF4CF5E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF4CF5E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,27188F80008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,912354B7528B
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,912354B7528B
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C917318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,27188F80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFFAC017370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFFAC030750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1B064000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1F0F5FF76A8
 
call      qword ptr [7FFF4C646C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8CEB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF4CF1E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF4CF1E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF4CF1E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF4CF1E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF4CF1E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,1F0F5FE0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0C736B2AD5DEA
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8D70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8D71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0C736B2AD5DEA
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8D7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C4F4000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8666E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C6F5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C4F4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB8F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C6FD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C83E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C83E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C4F4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB8F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C6FD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1F0F5FE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFFAC017370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFFAC030750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,18FCB400428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1D05D3776A8
 
call      qword ptr [7FFF4C666C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        near ptr M00_L24
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       r13,rax
 
mov       esi,[r13+8]
 
test      esi,esi
 
je        near ptr M00_L25
 
movzx     ecx,word ptr [r13+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       edi,[rsi-1]
 
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L25
 
M00_L08
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L25
 
M00_L09
  
xor       ebp,ebp
 
test      esi,esi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,ebp
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       ebp
 
cmp       esi,ebp
 
jg        short M00_L10
 
M00_L13
  
lea       edi,[rsi-1]
 
cmp       edi,ebp
 
jl        short M00_L20
 
mov       ecx,edi
 
or        ecx,ebp
 
jl        short M00_L17
 
cmp       esi,edi
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       edi
 
cmp       edi,ebp
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       edi,esi
 
jae       near ptr M00_L26
 
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFFAB5B2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF4CF3E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       edi
 
cmp       edi,ebp
 
jge       short M00_L17
 
M00_L20
  
mov       r14d,edi
 
sub       r14d,ebp
 
inc       r14d
 
cmp       esi,r14d
 
jne       short M00_L22
 
mov       rsi,r13
 
M00_L21
  
mov       [rsp+30],rsi
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      r14d,r14d
 
je        short M00_L23
 
mov       ecx,r14d
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
mov       r8d,r14d
 
cmp       [rsi],sil
 
lea       rcx,[rsi+0C]
 
mov       edx,ebp
 
lea       rdx,[r13+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rsi,1D05D360008
 
jmp       short M00_L21
 
M00_L24
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       near ptr M00_L01
 
M00_L25
  
mov       rsi,r13
 
jmp       short M00_L21
 
M00_L26
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,8145ABB5ACDD
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,8145ABB5ACDD
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1D05D360008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFFAC017370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFFAC030750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,25AE9C00428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,29B7BC67688
 
call      qword ptr [7FFF4C666C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0D2F746ED11E5
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C82C000]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C82C108]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0D2F746ED11E5
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C82C240]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C7E6790]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C82DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C9657E8]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C965800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,29B7BC50008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,186CB800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1C7595A7688
 
call      qword ptr [7FFF4C676C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,474DAEDD1DE0
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,474DAEDD1DE0
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C907318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1C759590008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1542D800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,194BB747688
 
call      qword ptr [7FFF4C656C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0B71F72D3A190
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0B71F72D3A190
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,194BB730008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,232B1400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,273432A7688
 
call      qword ptr [7FFF4C656C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,1AAF495FA4BB
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,1AAF495FA4BB
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,27343290008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,18E59000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1CEE6E376A8
 
call      qword ptr [7FFF4C686C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0E6EC114F279B
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0E6EC114F279B
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C917318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1CEE6E20008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,22C46C00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,26CD89476A8
 
call      qword ptr [7FFF4C686C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,46DD9D5CFEE8
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,46DD9D5CFEE8
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C917318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,26CD8930008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,24788400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2881A4176A8
 
call      qword ptr [7FFF4C686C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,82FE77A50B62
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,82FE77A50B62
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C917318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2881A400008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,23571C00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,275FF9F76A8
 
call      qword ptr [7FFF4C676C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0A3EC4FF34332
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0A3EC4FF34332
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C907318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,275FF9E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,27478000428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rbp
 
mov       [rsp+48],rax
 
lea       r8,[rsp+40]
 
mov       [rsp+28],r8
 
mov       dword ptr [rsp+30],2
 
lea       r8,[rsp+28]
 
mov       rdx,2B509EC7688
 
call      qword ptr [7FFF4C676C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0DE16B65003D4
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0DE16B65003D4
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C907318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2B509EB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,2187E400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,25910487688
 
call      qword ptr [7FFF4C656C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0F268D072FCA2
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0F268D072FCA2
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,25910470008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,226F6800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,26784517688
 
call      qword ptr [7FFF4C656C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,1FED4B48D39E
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,1FED4B48D39E
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,26784500008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1E64A800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,226D8797688
 
call      qword ptr [7FFF4C666C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,163E6937282A
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,163E6937282A
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,226D8780008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,15B37400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,19BC53876A8
 
call      qword ptr [7FFF4C676C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,5E25C2088CF2
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,5E25C2088CF2
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C907318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,19BC5370008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1DD6EC00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,21E00AC76A8
 
call      qword ptr [7FFF4C676C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0CC08C740092
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0CC08C740092
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C907318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,21E00AB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,21F0E400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,25FA02D76A8
 
call      qword ptr [7FFF4C686C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0D9A75028C5C8
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0D9A75028C5C8
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C917318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,25FA02C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L07
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,292E9400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,2D37B1A76A8
 
call      qword ptr [7FFF4C676C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,37153FB2C9A5
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,37153FB2C9A5
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C907318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2D37B190008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,175E8C00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rcx
 
mov       rcx,1B676919078
 
mov       [rsp+48],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],2
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1B676927688
 
call      qword ptr [7FFF4C686C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0E1B52270C212
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0E1B52270C212
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C917318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1B676910008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,20A16800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,24A98739078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,24A98747688
 
call      qword ptr [7FFF4C666C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,5E789A0A849D
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,5E789A0A849D
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,24A98730008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,203ED800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,2447B859078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2447B867688
 
call      qword ptr [7FFF4C686C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,5F309B7E2C
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,5F309B7E2C
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C917318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2447B850008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,162F0C00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,1A382C59078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1A382C67688
 
call      qword ptr [7FFF4C666C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0DA9A3D59BC76
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0DA9A3D59BC76
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1A382C50008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,186A6800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,1C7387E9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1C7387F76A8
 
call      qword ptr [7FFF4C666C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,5A81FF31410
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,5A81FF31410
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1C7387E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,1E381800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,2240F789078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2240F7976A8
 
call      qword ptr [7FFF4C666C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,27CD3C3CA83A
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C8F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,27CD3C3CA83A
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C8F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2240F780008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L07
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,17AE8000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,1BB79EE9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1BB79EF76A8
 
call      qword ptr [7FFF4C676C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3948BA4C317E
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3948BA4C317E
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C907318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1BB79EE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L07
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,23876400428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,279041D9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,279041E76A8
 
call      qword ptr [7FFF4C686C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0BBD43104FBE8
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF4C9170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C9171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0BBD43104FBE8
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF4C917318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF4C8A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,279041D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF4D0A6040]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,2D956408B08
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,319E8451C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FFF4C8FC3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,319E8450008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2D956408B08
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF4D0B64F0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,1A4E380AB00
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1E575841B34
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FFF4C82D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1E575840008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1A4E380AB00
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF4D0964F0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1C6FA002B38
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C80D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C80D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,20783CA1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF4C80D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C80D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8296D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,20783CA0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1C6FA002B38
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C80D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF4D0D6370]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,22EF8C0AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,26F8AC31B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF4C84D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,26F8AC30008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,22EF8C0AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF4D0A7AC8]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,198DC40AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C81D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1D96E371B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF4C81D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C81D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8396D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1D96E370008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,198DC40AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF4D0975A0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1FAA580AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C80D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C80D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,23B33901B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF4C80D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C80D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8296D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,23B33900008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1FAA580AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C80D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF4D0B75A0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,14FE400AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,19075D81B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF4C82D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,19075D80008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,14FE400AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF4D0C75A0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rbx,rdx
 
mov       rsi,r8
 
test      rsi,rsi
 
je        near ptr M01_L13
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1CBCC40AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rsi+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rbx],0
 
je        short M01_L07
 
mov       rdx,20C5E431B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF4C83D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,20C5E430008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1CBCC40AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,283F00B9078
 
call      qword ptr [7FFF4D0B6388]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rsi,rcx
 
mov       rdi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,283F00B9078
 
test      rsi,rsi
 
cmove     rsi,rcx
 
mov       rcx,2435E008B08
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rdi],0
 
je        short M01_L07
 
mov       rdx,283F00B1C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C90C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,283F00B0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2435E008B08
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,21E0A469078
 
call      qword ptr [7FFF4D0D6058]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,21E0A469078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1DD7840AB00
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        near ptr M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,21E0A461B34
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
add       r8d,2
 
mov       [r15+18],r8d
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C84D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFF4C8696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,21E0A460008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1DD7840AB00
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,23F5BC59078
 
call      qword ptr [7FFF4D0D6058]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,23F5BC59078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1FEC9C0AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,23F5BC51B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C84D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,23F5BC50008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1FEC9C0AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,25824769078
 
call      qword ptr [7FFF4D0B6058]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,25824769078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,21792808B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,25824761C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C90C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,25824760008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEBF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,21792808B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEBC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,1DC15049078
 
call      qword ptr [7FFF4D0B7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1DC15049078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,19B8B002B38
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1DC15041B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C82D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1DC15040008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,19B8B002B38
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2E512239078
 
call      qword ptr [7FFF4D0C7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2E512239078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,2A48040AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2E512231B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C83D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2E512230008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2A48040AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2E8B62F9078
 
call      qword ptr [7FFF4D0B7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L14
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L14
 
test      rdi,rdi
 
je        near ptr M01_L15
 
M01_L00
  
mov       rcx,2A824408B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L16
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L16
 
M01_L01
  
mov       r13,[rbp-40]
 
M01_L02
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L09
 
M01_L03
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L07
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L05
  
mov       [r13+18],r15d
 
jmp       short M01_L07
 
M01_L06
  
mov       rcx,r13
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L08
 
cmp       byte ptr [rsi],0
 
je        short M01_L12
 
mov       rdx,2E8B62F1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L10
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
M01_L08
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L03
 
M01_L09
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L13
 
M01_L10
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L08
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
M01_L12
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C82D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L08
 
M01_L13
  
mov       rcx,rsp
 
call      M01_L18
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rax,2E8B62F0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L15
  
mov       rdi,2E8B62F9078
 
jmp       near ptr M01_L00
 
M01_L16
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L17
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L01
 
M01_L17
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L02
 
M01_L18
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2A824408B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L19
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L23
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L20
 
M01_L19
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L23
 
M01_L20
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L21
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L23
 
M01_L21
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L22
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L23
 
M01_L22
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L23
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,1DA07A39078
 
call      qword ptr [7FFF4D0B7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rbx,rdx
 
mov       rsi,r8
 
test      rsi,rsi
 
je        near ptr M01_L14
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M01_L14
 
test      rdi,rdi
 
je        near ptr M01_L15
 
M01_L00
  
mov       rcx,19977C08B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L16
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L16
 
M01_L01
  
mov       r13,[rbp-40]
 
M01_L02
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L11
 
M01_L03
  
mov       r8d,r12d
 
mov       r8,[rsi+r8*8+10]
 
test      r8,r8
 
je        short M01_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L07
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L05
  
mov       [r13+18],r15d
 
jmp       short M01_L07
 
M01_L06
  
mov       rcx,r13
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L12
 
cmp       r12d,ecx
 
jge       short M01_L10
 
cmp       byte ptr [rbx],0
 
je        short M01_L08
 
mov       rdx,1DA07A31B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L09
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L10
 
M01_L08
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C82D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L10
 
M01_L09
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
add       r12d,1
 
jo        short M01_L12
 
cmp       r12d,r14d
 
jl        near ptr M01_L03
 
M01_L11
  
mov       rcx,r13
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L13
 
M01_L12
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L13
  
mov       rcx,rsp
 
call      M01_L18
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rax,1DA07A30008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L15
  
mov       rdi,1DA07A39078
 
jmp       near ptr M01_L00
 
M01_L16
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L17
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L01
 
M01_L17
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L02
 
M01_L18
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,19977C08B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L19
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L23
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L20
 
M01_L19
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L23
 
M01_L20
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L21
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L23
 
M01_L21
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L22
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L23
 
M01_L22
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L23
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF4D0A64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        short M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L05
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
jmp       short M01_L11
 
M01_L05
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L06
  
test      rcx,rcx
 
je        short M01_L10
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L10
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L09
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        near ptr M01_L16
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        short M01_L08
 
M01_L07
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L10
 
M01_L08
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L09
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
inc       r15d
 
cmp       r14d,r15d
 
jle       short M01_L14
 
M01_L11
  
test      esi,esi
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L15
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L17
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L18
 
M01_L12
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L13
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L10
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       short M01_L19
 
jmp       near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L13
 
M01_L16
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L17
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L12
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L06
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFF4C85ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF4D0864C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L21
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L07
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L12
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        near ptr M01_L12
 
mov       r12,[rbx+8]
 
mov       eax,[rbx+18]
 
mov       [rsp+24],eax
 
lea       ecx,[rax+r13]
 
cmp       ecx,[r12+8]
 
ja        short M01_L11
 
jmp       near ptr M01_L16
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L19
 
M01_L08
  
test      esi,esi
 
je        short M01_L15
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L14
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L10
 
M01_L09
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
jmp       short M01_L15
 
M01_L10
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFF4C8DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L08
 
jmp       short M01_L19
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L12
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       near ptr M01_L03
 
M01_L16
  
movsxd    r8,eax
 
lea       rcx,[r12+r8*2+10]
 
cmp       r13d,2
 
jg        short M01_L18
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        short M01_L20
 
M01_L17
  
add       r13d,[rsp+24]
 
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L18
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L17
 
M01_L19
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L17
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFF4C83ED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF4D0B64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFF4C86ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF4D0A6010]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L21
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L05
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L07
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L08
 
jmp       near ptr M01_L19
 
M01_L05
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L19
 
M01_L08
  
test      esi,esi
 
je        near ptr M01_L15
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L12
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L10
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L15
 
M01_L10
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
test      rcx,rcx
 
je        near ptr M01_L04
 
jmp       short M01_L13
 
M01_L12
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L13
  
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L04
 
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        near ptr M01_L03
 
jmp       short M01_L16
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       short M01_L11
 
M01_L16
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L18
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L17
  
mov       eax,[rsp+24]
 
mov       [rbx+18],eax
 
jmp       near ptr M01_L04
 
M01_L18
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L17
 
M01_L19
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L17
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFF4C85ED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L11
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF4D097570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFF4C84ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF4D0C7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L10
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L10
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L10
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L09
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        near ptr M01_L17
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       near ptr M01_L10
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        short M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L07
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L05
 
M01_L04
  
mov       [rbx+18],r13d
 
jmp       short M01_L07
 
M01_L05
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L06
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L11
 
M01_L08
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L09
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
mov       r15d,1
 
cmp       r14d,1
 
jle       short M01_L08
 
M01_L11
  
test      esi,esi
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L16
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L18
 
M01_L12
  
mov       [rbx+18],r13d
 
M01_L13
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       short M01_L19
 
jmp       near ptr M01_L03
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L04
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L12
 
M01_L16
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L13
 
M01_L17
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L01
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFF4C87ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF4D0A7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L21
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L08
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L08
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L08
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L08
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        short M01_L06
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L06
 
jmp       near ptr M01_L12
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L09
 
jmp       near ptr M01_L19
 
M01_L07
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L08
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L19
 
M01_L09
  
test      esi,esi
 
je        short M01_L15
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L15
 
M01_L11
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        near ptr M01_L05
 
jmp       short M01_L16
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L06
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       near ptr M01_L03
 
M01_L16
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L18
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L17
  
mov       r13d,[rsp+24]
 
mov       [rbx+18],r13d
 
jmp       near ptr M01_L06
 
M01_L18
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L17
 
M01_L19
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L17
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFF4C85ED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF4D0B7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L10
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L10
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L10
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L09
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        near ptr M01_L17
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       near ptr M01_L10
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        short M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L07
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L05
 
M01_L04
  
mov       [rbx+18],r13d
 
jmp       short M01_L07
 
M01_L05
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L06
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L11
 
M01_L08
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L09
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
mov       r15d,1
 
cmp       r14d,1
 
jle       short M01_L08
 
M01_L11
  
test      esi,esi
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L16
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L18
 
M01_L12
  
mov       [rbx+18],r13d
 
M01_L13
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       short M01_L19
 
jmp       near ptr M01_L03
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L04
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L12
 
M01_L16
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L13
 
M01_L17
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L01
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFF4C86ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,21860C79084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF4D0A64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L17
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L18
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L04
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L10
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        near ptr M01_L10
 
mov       r12,[rbx+8]
 
mov       eax,[rbx+18]
 
mov       [rsp+24],eax
 
lea       ecx,[rax+r13]
 
cmp       ecx,[r12+8]
 
ja        near ptr M01_L09
 
movsxd    r8,eax
 
lea       rcx,[r12+r8*2+10]
 
cmp       r13d,2
 
jg        near ptr M01_L13
 
jmp       near ptr M01_L16
 
M01_L04
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L12
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L15
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L11
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L07
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L08
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L10
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L20
 
jmp       near ptr M01_L03
 
M01_L09
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L06
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L07
 
M01_L12
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L13
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L14
  
add       r13d,[rsp+24]
 
mov       [rbx+18],r13d
 
jmp       short M01_L10
 
M01_L15
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L16
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L14
 
movzx     edx,word ptr [rdx+2]
 
mov       [rcx+2],dx
 
jmp       short M01_L14
 
M01_L17
  
mov       ecx,6
 
call      qword ptr [7FFF4C85ED00]
 
int       3
 
M01_L18
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L20
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2A643759084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF4D0A6010]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L13
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L14
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L12
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L11
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L15
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L13
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L15
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF4C85ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,242F1BC9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF4D0C64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF4C87ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,22E24589084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF4D0B6010]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF4C86ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,1EBE6C79084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF4D0A78A0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF4C85ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,20702CE9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF4D0A7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF4C85ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,22B8F289084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF4D0C7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF4C87ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2713C399084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF4D097A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF4C84ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L02
 
M01_L00
  
test      r8,r8
 
je        short M01_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L02
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L02
  
ret
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L02
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L08
  
cmp       rcx,rdx
 
je        short M01_L02
 
M01_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1948C2D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L02
 
test      r8b,18
 
je        short M01_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L00
  
ret
 
M01_L01
  
test      r8b,4
 
je        short M01_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L00
 
M01_L02
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L05
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L00
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L03
 
jmp       short M01_L04
 
M01_L08
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M01_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M01_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2D5E9F00008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L02
 
M01_L00
  
test      r8,r8
 
je        short M01_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L02
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L02
  
ret
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L02
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L08
  
cmp       rcx,rdx
 
je        short M01_L02
 
M01_L09
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1AF2E1E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L02
 
M01_L00
  
test      r8,r8
 
je        short M01_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L02
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L02
  
ret
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L02
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L08
  
cmp       rcx,rdx
 
je        short M01_L02
 
M01_L09
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,19E5B960008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L02
 
M01_L00
  
test      r8,r8
 
je        short M01_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L02
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L02
  
ret
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L02
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L08
  
cmp       rcx,rdx
 
je        short M01_L02
 
M01_L09
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2B73F070008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L02
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L05
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L00
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L03
 
jmp       short M01_L04
 
M01_L08
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M01_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M01_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,25B7D8E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,169CBCA0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2CD0EB10008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,184CF808160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4CDCE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D096568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF4CDBE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6541F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,184CF808B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-30]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M03_L07
 
mov       r8,[rdi+8]
 
mov       r15d,[rdi+18]
 
lea       ecx,[r15+r14]
 
cmp       ecx,[r8+8]
 
ja        short M03_L06
 
movsxd    rcx,r15d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jle       short M03_L05
 
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
add       r14d,r15d
 
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
mov       r8d,r14d
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1C5617F0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,184CF808B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-38]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-38]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1FDD0008160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4CDDE4E8]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0A6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF4CDCEE08]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6641F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCF378]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1FDD0008B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,23E5E050008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCF378]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1FDD0008B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCF348]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCF348]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,19BBD008160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4CDEE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0B6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF4CDDE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6741F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,19BBD008B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1DC4B000008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,19BBD008B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1B878C08160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4CDFE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0C6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF4CDEE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6841F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1B878C08B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C91C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1F90AA80008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1B878C08B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C91C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF4C91C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,23909C08160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4CDDE4D0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0A7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF4CDCE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6641F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,23909C08B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,2799BC20008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,23909C08B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,18D71808160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4CDCE418]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D097618]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF4CDBEE08]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6541F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBF378]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,18D71808B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1CE03500008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBF378]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,18D71808B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBF348]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBF348]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,23D44008160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4CDEE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0B7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF4CDDE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6741F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,23D44008B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,27DD6040008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,23D44008B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,25C6B808160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF4CDDE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0A7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF4CDCE688]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6641F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEBF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,25C6B808B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,29CFD580008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEBF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,25C6B808B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEBC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF4C8FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEBC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L04
 
M00_L00
  
mov       ecx,[rsi+1C]
 
add       ecx,[rsi+18]
 
test      ecx,ecx
 
jle       short M00_L01
 
mov       ecx,[rsi+18]
 
mov       rdx,[rsi+8]
 
cmp       [rdx+8],ecx
 
ja        near ptr M00_L09
 
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF4C91C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L01
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,1AD9AD60210
 
call      qword ptr [7FFF4C686B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L02
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L03
 
mov       r8,16D08C00438
 
cmp       qword ptr [r8],0
 
jne       short M00_L03
 
mov       r8,16D08C00418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L03
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       near ptr M00_L07
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C91CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L05
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L06
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C90EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       near ptr M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L05
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L07
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M00_L10
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L08
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L08
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       near ptr M00_L04
 
M00_L09
  
mov       ecx,ecx
 
mov       word ptr [rdx+rcx*2+10],2C
 
inc       dword ptr [rsi+18]
 
jmp       near ptr M00_L01
 
M00_L10
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L08
 
M00_L11
  
call      qword ptr [7FFF4C87EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L02
 
M00_L13
  
call      qword ptr [7FFF4C824030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L03
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C686B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF4C87EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C686B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C686B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C91CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C87E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C87E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C534000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBCF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C73D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1AD9AD60008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M05_L02
 
M05_L00
  
test      r8,r8
 
je        short M05_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M05_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M05_L02
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M05_L02
  
ret
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L06
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L10
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L02
 
M05_L06
  
cmp       r8,800
 
ja        short M05_L09
 
mov       r9,r8
 
shr       r9,6
 
M05_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L08
  
cmp       rcx,rdx
 
je        short M05_L02
 
M05_L09
  
jmp       qword ptr [7FFF4C735B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFFAC0041F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFFAC017B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFFAC018B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L05
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF4C90C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,24A7F6C0210
 
call      qword ptr [7FFF4C676B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,209F1800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,209F1800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L05
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       near ptr M00_L08
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L05
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L06
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L07
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L07
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       near ptr M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L06
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L08
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L10
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L09
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       near ptr M00_L05
 
M00_L10
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L09
 
M00_L11
  
call      qword ptr [7FFF4C86EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF4C814030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF4C86EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,24A7F6C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M05_L02
 
M05_L00
  
test      r8,r8
 
je        short M05_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M05_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M05_L02
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M05_L02
  
ret
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L06
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L10
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L02
 
M05_L06
  
cmp       r8,800
 
ja        short M05_L09
 
mov       r9,r8
 
shr       r9,6
 
M05_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L08
  
cmp       rcx,rdx
 
je        short M05_L02
 
M05_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFFAC0041F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFFAC017B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFFAC018B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF4C8EC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2A6D3220210
 
call      qword ptr [7FFF4C656B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,26645400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,26645400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF4C84EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF4C7F4030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C656B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF4C84EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C656B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C656B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L02
 
test      r8b,18
 
je        short M03_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L00
  
ret
 
M03_L01
  
test      r8b,4
 
je        short M03_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L00
 
M03_L02
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L05
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L00
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L03
 
jmp       short M03_L04
 
M03_L08
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L09
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M03_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M03_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2A6D3220008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFFAC0041F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFFAC017B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFFAC018B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF4C8EC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,26AA9E70210
 
call      qword ptr [7FFF4C656B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,22A1C000438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,22A1C000418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8DEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF4C84EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF4C7F4030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C656B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF4C84EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C656B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C656B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF4C705B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C84E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C84E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C504000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CB9F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C70D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,26AA9E70008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFFAC0041F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFFAC017B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFFAC018B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF4C8FC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,238233D0210
 
call      qword ptr [7FFF4C666B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+40]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,1F791400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,1F791400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF4C85EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF4C804030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF4C85EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L02
 
test      r8b,18
 
je        short M03_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L00
  
ret
 
M03_L01
  
test      r8b,4
 
je        short M03_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L00
 
M03_L02
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L05
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L00
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L03
 
jmp       short M03_L04
 
M03_L08
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L09
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M03_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M03_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,238233D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFFAC0041F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFFAC017B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFFAC018B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF4C90C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,286287B0210
 
call      qword ptr [7FFF4C676B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,24596800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,24596800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF4C86EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF4C814030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF4C86EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L02
 
M03_L00
  
test      r8,r8
 
je        short M03_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L02
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L02
  
ret
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L02
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L08
  
cmp       rcx,rdx
 
je        short M03_L02
 
M03_L09
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,286287B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFFAC0041F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFFAC017B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFFAC018B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF4C90C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,28264E00210
 
call      qword ptr [7FFF4C676B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,241D7000438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,241D7000418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF4C86EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF4C814030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF4C86EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C676B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF4C725B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C90CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C86E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C86E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C524000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBBF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C72D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,28264E00008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFFAC0041F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFFAC017B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFFAC018B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF4C8FC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,213CDA20210
 
call      qword ptr [7FFF4C666B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+40]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,1D33BC00438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,1D33BC00418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r13d,[r15+8]
 
test      r13d,r13d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r12d,[rsi+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jle       short M00_L06
 
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r13d,r12d
 
mov       [rsi+18],r13d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        near ptr M00_L14
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r13d
 
call      qword ptr [7FFF4C8FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF4C8EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r13,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r13+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [r13+8],rcx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L15
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF4C85EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF4C804030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       near ptr M00_L05
 
M00_L15
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF4C85EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF4C666B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L02
 
test      r8b,18
 
je        short M03_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L00
  
ret
 
M03_L01
  
test      r8b,4
 
je        short M03_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L00
 
M03_L02
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L05
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L00
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L03
 
jmp       short M03_L04
 
M03_L08
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L09
  
jmp       qword ptr [7FFF4C715B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M03_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M03_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF4C8FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF4C85E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF4C85E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFF4C514000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF4CBAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF4C71D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,213CDA20008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFFAC0041F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFFAC017B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFFAC018B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF4D0B6028]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-48],rax
 
mov       [rbp-38],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,2268B408B08
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-38],rcx
 
cmp       qword ptr [rbp-38],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-38]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-38]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-38]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-38],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-40],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       edi,[r8+8]
 
test      edi,edi
 
je        short M01_L06
 
mov       r8,[r14+8]
 
mov       r13d,[r14+18]
 
lea       ecx,[rdi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       edi,2
 
jle       short M01_L04
 
movsxd    r8,edi
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
add       edi,r13d
 
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       edi,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
mov       r8d,edi
 
call      qword ptr [7FFF4C90CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF4C90C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFF4C8FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-48],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-48]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2671D260008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-38]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,2268B408B08
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       r13,[rbp-40]
 
mov       rcx,[r13+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[r13+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF4C90C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-40]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       r13,[rbp-40]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,r13
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,r13
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF4D0D6358]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,22CE3802B38
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF4C84D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFF4C8696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,26D6D5B0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,22CE3802B38
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF4D0C64D8]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,25AFB00AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFF4C8596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF4C83D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,29B8CF40008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,25AFB00AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF4D0A64D8]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1A95CC0AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFF4C81D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFF4C8396D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF4C81D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,1E9EEA10008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1A95CC0AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF4D0A7AB0]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1E977C02B38
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFF4C81D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFF4C8396D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF4C81D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,22A01BC0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1E977C02B38
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF4D0C7AB0]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,20EF340AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       eax,eax
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFF4C8596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF4C83D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,24F81420008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,20EF340AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF4D0D7AB0]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,26976808B08
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFF4C8696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF4C84D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2AA084F0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,26976808B08
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF4D0B7AB0]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1EFE8402B38
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF4C82D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,23072150008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1EFE8402B38
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0C6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6741F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,204ED408B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2457F1F0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,204ED408B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0960B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6441F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C80D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,221ED808B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C80D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C80D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8296D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2627F7A0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,221ED808B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C80D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0D60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6841F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,20E69C0AB00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C735B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C84D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,24EFBCC0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,20E69C0AB00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C84D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDFEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0A6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6541F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C81D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1C98480AB00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C81D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8396D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,20A127B0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1C98480AB00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0A7618]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6541F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C81D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1E6B6402B38
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C705B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C81D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8396D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2273C3F0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1E6B6402B38
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C81D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDCEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0C7618]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6741F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2213EC08B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C725B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C83D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,261D0C20008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2213EC08B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C83D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D0B7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6641F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,276BF002B38
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C715B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C82D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8496D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2B740FE0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,276BF002B38
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C82D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF4D097948]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF4C6441F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF4C80D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,26D91808B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C80D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF4C6F5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C80D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF4C8296D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2AE23560008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,26D91808B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF4C80D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF4CDBEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret